Apparatus for pumping oil-wells



2 Sheets-Sheet 2.

E. D. YATES. Apparatus for Pumping Oil-Wells.

Patented April 27,1880.

Invenio r V Aisha sis N.PETERS. PHOTOLITHOGRAPHER. WASHINGTON ll QUNITED STATES PATENT OFFICE.

EDWARD D. YATES, OF PHILADELPHIA, PENNSYLVANIA APPARATUS FOR PUMPl NGOIL-WELLS.

SPECIFICATION forming part of Letters Patent No. 226,948, dated April27, 1880.

Application filed May 28, 1879.

To all whom it may concern:

Be it known that I, EDWARD D. YATES, of the city and county ofPhiladelphia, and State of Pennsylvania, have invented a new and usefulImprovement in Apparatus for Pumping Oil-VVells and analogous uses,which improvement is fully set forth in the following specification andaccompanying drawings, in which Figure 1 is a perspective view, showingmy invention in operation; Fig. 2, a plan view, and Fig. 3 a mode ofarranging my oscillating wheels.

The object of my invention is the economizing of the power requisite topump non-flowing oil-wells.

Prior to my invention each well required an engine or water-wheel, or,at the most, two or more wells were connected with the same motor,either by connecting their walking-beams with the same line ofreciprocating rods or by means of pulleys. The dead-weight of thepumping-rods and appliances of each well was by this method throwndirectly on the motor, and its limit of practicability soon reached.There were, it is true, some devices extant by a proper adjustment ofwhich a number of wells could be made to balance each other, but theirexpensive and complicated construction forbade their general use.

In my improved process I connect the motor not with the reciprocatingrods directly, but with an oscillating wheel, which (reference being nowhad to the drawings) is marked B, the motor being represented at A. Thisconnection is effected by means of the rods a a, in the manner shown.

To suitable projections on the wheel B, such as are shown at b b, Iattach the lines of reciprocating rods 0 C, so that the dead-weight ofthe pumping apparatus attached thereto may be thrown upon the wheel B insuch a manner that one half of it shall tend to pull the wheel in onedirection and the other half tend to pull it in the other direction. Thewheel being thus in equilibrium, the only work thrown upon the motor A,beyond overcoming the inertia and friction of the rods andtheir'supports, is the raising of the oil in half of the wells at atime. Thus a motor which, connected directly with the well in the oldmanner, would scarcely suffice for a single Well may thus provide amplepower to pump from four to six.

Another advantage gained by my invention is, that after a well is boredthe engine and heavy parts of the machinery may be at once removed andused for another boring, as it is no longer required, as in the oldprocess a great part of it is.

When the number of wells to be pumped is too great to admit of theirbeing all connected with the same wheel B, another similar oscillatingwheel, such as B, may be erected and connected with the wheel B by meansof rods 0," a, so that its motion shall be similar.

It is obvious that when the wheel B is properly balanced it will notaifect the equilibrium of the wheel B.

Fig. 3 shows another method of attaching numerous wells to a singlemotor, and may be advantageously used where the number of wells inconnection is not too great for two wheels.

Where strokes of different lengths are required for the wells connectedwith the same wheel the object is attained by lengthening or shorteningthe arm to which the reciprocating rods are attached, or by setting therods at an angle more or less oblique to the arm, the maximum strokebeing when it is at right angles.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-- The combination, with the reciprocatingpump-rods of numerous oil-wells, of an oscillating horizontal wheel orwheels connected directly thereto, substantially in the manner and forthe purpose described.

EDWARD D. YATES.

Witnesses:

R. S. CHILD, J r., G. J. HARDING.

